The braking system is an important part of the chain hoist, mainly composed of friction plates, ratchets, pawls, and brake seats. Each component plays a unique role in the entire braking system and is indispensable.
We all know that the braking system of a chain hoist is a reverse braking system. When the zipper strip is pulled, it drives the chain wheel to move clockwise. At this point, the braking system begins to take effect, with the ratchet and friction plates on both sides pressing against each other to achieve a deceleration effect. The entire braking system rotates counterclockwise under the action of load gravity, at which point the pawl begins to function.
Under the action of load gravity, the friction plate and the ratchet start to separate, and the pawl meshes with the ratchet under the action of the spring to achieve the first braking. Pull the manual chain, and the friction plate and ratchet are pressed against each other again to form a whole, and the pawl retracts. Under the action of load gravity, the friction plate and ratchet separate again, and the pawl meshes with the ratchet again.
The entire process of the chain hoist involves repeated compression, separation, and engagement of the braking system. This is the working principle of the pawl in the entire braking system. The pawl is a component that moves the pawl wheel intermittently, and the meshing between the pawl and the pawl wheel is also the key to achieving safe operation of the chain hoist.